The patch below does not apply to the 5.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.4.y git checkout FETCH_HEAD git cherry-pick -x d744ae7477190967a3ddc289e2cd4ae59e8b1237 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2023072141-showbiz-repulsive-22ee@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^..

Possible dependencies:

d744ae747719 ("hwrng: imx-rngc - fix the timeout for init and self check") f086fd1e4344 ("hwrng: imx-rngc - simplify interrupt mask/unmask") 3acd9ea9331c ("hwrng: imx-rngc - use automatic seeding") 47a1f8e8b363 ("hwrng: imx-rngc - fix an error path")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From d744ae7477190967a3ddc289e2cd4ae59e8b1237 Mon Sep 17 00:00:00 2001 From: Martin Kaiser martin@kaiser.cx Date: Thu, 15 Jun 2023 15:49:59 +0100 Subject: [PATCH] hwrng: imx-rngc - fix the timeout for init and self check

Fix the timeout that is used for the initialisation and for the self test. wait_for_completion_timeout expects a timeout in jiffies, but RNGC_TIMEOUT is in milliseconds. Call msecs_to_jiffies to do the conversion.

Cc: stable@vger.kernel.org Fixes: 1d5449445bd0 ("hwrng: mx-rngc - add a driver for Freescale RNGC") Signed-off-by: Martin Kaiser martin@kaiser.cx Signed-off-by: Herbert Xu herbert@gondor.apana.org.au

diff --git a/drivers/char/hw_random/imx-rngc.c b/drivers/char/hw_random/imx-rngc.c index 1a6a5dd0a5a1..e5a9dee615c8 100644 --- a/drivers/char/hw_random/imx-rngc.c +++ b/drivers/char/hw_random/imx-rngc.c @@ -110,7 +110,7 @@ static int imx_rngc_self_test(struct imx_rngc *rngc) cmd = readl(rngc->base + RNGC_COMMAND); writel(cmd | RNGC_CMD_SELF_TEST, rngc->base + RNGC_COMMAND);

- ret = wait_for_completion_timeout(&rngc->rng_op_done, RNGC_TIMEOUT); + ret = wait_for_completion_timeout(&rngc->rng_op_done, msecs_to_jiffies(RNGC_TIMEOUT)); imx_rngc_irq_mask_clear(rngc); if (!ret) return -ETIMEDOUT; @@ -182,9 +182,7 @@ static int imx_rngc_init(struct hwrng *rng) cmd = readl(rngc->base + RNGC_COMMAND); writel(cmd | RNGC_CMD_SEED, rngc->base + RNGC_COMMAND);

- ret = wait_for_completion_timeout(&rngc->rng_op_done, - RNGC_TIMEOUT); - + ret = wait_for_completion_timeout(&rngc->rng_op_done, msecs_to_jiffies(RNGC_TIMEOUT)); if (!ret) { ret = -ETIMEDOUT; goto err;